This document is the compilation of 50 reviews of selected articles, published between 1966-1970, pertaining to the relationship between malnutrition and potential to learn. The materials represent a relatively complete cross-section of the information available on this subject. There are three recurring themes in the publications reviewed. (1) If significant malnutrition occurs during critical periods of rapid brain cell multiplication, the number of cells produced is reduced. The cell deficiency is irreversible regardless of subsequent nutritional sufficiency. (2) Non-nutritional environmental factors may influence intersensory organization during periods of rapid development in a similar manner and might be more specifically described as the deprivation of positive perceived stimuli. (3) It seems that in the near future some governmental institution will assume major proportions of responsibility for a broad spectrum of children between the ages of 0-5 years. Since educators and educational institutions will share these responsibilities, the importance of all aspects of nurturance will become a paramount consideration. (Author/AJ)